An exception is raised when importing an export from version 4.2.0 into version 3.0.3.
java.io.FileNotFoundException: C: Users bamboo-dev bamboo-home-420 xml-data configuration administration.xml (The system cannot find the file specified
See attachment log-file-extract.txt
The file in question is present before the import process commenced. Bamboo is running with administrator privileges on a Windows Server 2008 machine.